Home / 55,783.02-83,711.79-20,726.22

Finding the Fourth Proportional to 55,783.02, 83,711.79 and 20,726.22

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Solution

The fourth proportional to 55,783.02, 83,711.79 and 20,726.22 is: 31,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,783.02 : 83,711.79 = 20,726.22 : x
  2. Step 2: Convert to fraction form
    55,783.02/83,711.79 = 20,726.22/x
  3. Step 3: Cross multiply
    55,783.02x = 83,711.79 × 20,726.22
  4. Step 4: Simplify right side
    55,783.02x = 1,735,028,976.13
  5. Step 5: Solve for x
    x = 1,735,028,976.13/55,783.02
  6. Step 6: Final answer
    x = 31,103.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.